diff --git a/client/asset/btc/btc.go b/client/asset/btc/btc.go
index 7340176e50..7fb83607e8 100644
--- a/client/asset/btc/btc.go
+++ b/client/asset/btc/btc.go
@@ -30,7 +30,7 @@ import (
 	"github.com/btcsuite/btcd/txscript"
 	"github.com/btcsuite/btcd/wire"
 	"github.com/btcsuite/btcutil"
-	"github.com/decred/dcrd/rpcclient/v6"
+	"github.com/decred/dcrd/rpcclient/v7"
 )
 
 const (
diff --git a/client/asset/dcr/config.go b/client/asset/dcr/config.go
index 4aba8013ea..b4f1e20117 100644
--- a/client/asset/dcr/config.go
+++ b/client/asset/dcr/config.go
@@ -11,7 +11,7 @@ import (
 	"decred.org/dcrdex/dex"
 	"decred.org/dcrdex/dex/config"
 	"github.com/decred/dcrd/chaincfg/v3"
-	"github.com/decred/dcrd/dcrutil/v3"
+	"github.com/decred/dcrd/dcrutil/v4"
 )
 
 const (
diff --git a/client/asset/dcr/dcr.go b/client/asset/dcr/dcr.go
index e66bbc5e3b..5c99c0813b 100644
--- a/client/asset/dcr/dcr.go
+++ b/client/asset/dcr/dcr.go
@@ -26,18 +26,18 @@ import (
 	"decred.org/dcrdex/dex"
 	"decred.org/dcrdex/dex/calc"
 	dexdcr "decred.org/dcrdex/dex/networks/dcr"
-	"decred.org/dcrwallet/rpc/client/dcrwallet"
-	walletjson "decred.org/dcrwallet/rpc/jsonrpc/types"
+	"decred.org/dcrwallet/v2/rpc/client/dcrwallet"
+	walletjson "decred.org/dcrwallet/v2/rpc/jsonrpc/types"
 	"github.com/decred/dcrd/chaincfg/chainhash"
 	"github.com/decred/dcrd/chaincfg/v3"
 	"github.com/decred/dcrd/dcrec"
 	"github.com/decred/dcrd/dcrec/secp256k1/v3"
 	"github.com/decred/dcrd/dcrec/secp256k1/v3/ecdsa"
 	"github.com/decred/dcrd/dcrjson/v3"
-	"github.com/decred/dcrd/dcrutil/v3"
-	chainjson "github.com/decred/dcrd/rpc/jsonrpc/types/v2"
-	"github.com/decred/dcrd/rpcclient/v6"
-	"github.com/decred/dcrd/txscript/v3"
+	"github.com/decred/dcrd/dcrutil/v4"
+	chainjson "github.com/decred/dcrd/rpc/jsonrpc/types/v3"
+	"github.com/decred/dcrd/rpcclient/v7"
+	"github.com/decred/dcrd/txscript/v4"
 	"github.com/decred/dcrd/wire"
 )
 
@@ -66,7 +66,7 @@ const (
 
 var (
 	requiredWalletVersion = dex.Semver{Major: 8, Minor: 4, Patch: 0}
-	requiredNodeVersion   = dex.Semver{Major: 6, Minor: 1, Patch: 2}
+	requiredNodeVersion   = dex.Semver{Major: 7, Minor: 0, Patch: 0}
 )
 
 var (
@@ -149,10 +149,10 @@ var (
 
 // rpcClient is an rpcclient.Client, or a stub for testing.
 type rpcClient interface {
-	EstimateSmartFee(ctx context.Context, confirmations int64, mode chainjson.EstimateSmartFeeMode) (float64, error)
+	EstimateSmartFee(ctx context.Context, confirmations int64, mode chainjson.EstimateSmartFeeMode) (*chainjson.EstimateSmartFeeResult, error)
 	GetBlockChainInfo(ctx context.Context) (*chainjson.GetBlockChainInfoResult, error)
 	SendRawTransaction(ctx context.Context, tx *wire.MsgTx, allowHighFees bool) (*chainhash.Hash, error)
-	GetTxOut(ctx context.Context, txHash *chainhash.Hash, index uint32, mempool bool) (*chainjson.GetTxOutResult, error)
+	GetTxOut(ctx context.Context, txHash *chainhash.Hash, index uint32, tree int8, mempool bool) (*chainjson.GetTxOutResult, error)
 	GetBalanceMinConf(ctx context.Context, account string, minConfirms int) (*walletjson.GetBalanceResult, error)
 	GetBestBlock(ctx context.Context) (*chainhash.Hash, int64, error)
 	GetBlockHash(ctx context.Context, blockHeight int64) (*chainhash.Hash, error)
@@ -677,11 +677,11 @@ func (dcr *ExchangeWallet) feeRate(confTarget uint64) (uint64, error) {
 	if confTarget < 2 {
 		confTarget = 2
 	}
-	dcrPerKB, err := dcr.node.EstimateSmartFee(dcr.ctx, int64(confTarget), chainjson.EstimateSmartFeeConservative)
+	estimateFeeResult, err := dcr.node.EstimateSmartFee(dcr.ctx, int64(confTarget), chainjson.EstimateSmartFeeConservative)
 	if err != nil {
 		return 0, translateRPCCancelErr(err)
 	}
-	atomsPerKB, err := dcrutil.NewAmount(dcrPerKB) // satPerKB is 0 when err != nil
+	atomsPerKB, err := dcrutil.NewAmount(estimateFeeResult.FeeRate) // satPerKB is 0 when err != nil
 	if err != nil {
 		return 0, err
 	}
@@ -1230,7 +1230,7 @@ func (dcr *ExchangeWallet) FundingCoins(ids []dex.Bytes) (asset.Coins, error) {
 		if !notFound[pt] {
 			continue
 		}
-		txOut, err := dcr.node.GetTxOut(dcr.ctx, txHash, output.Vout, true)
+		txOut, err := dcr.getTxOut(txHash, output.Vout, true)
 		if err != nil {
 			return nil, fmt.Errorf("gettxout error for locked output %v: %w", pt.String(), translateRPCCancelErr(err))
 		}
@@ -1499,7 +1499,7 @@ func (dcr *ExchangeWallet) SignMessage(coin asset.Coin, msg dex.Bytes) (pubkeys,
 		addr = fCoin.addr
 	} else {
 		// Check if we can get the address from gettxout.
-		txOut, err := dcr.node.GetTxOut(dcr.ctx, op.txHash(), op.vout(), true)
+		txOut, err := dcr.getTxOut(op.txHash(), op.vout(), true)
 		if err == nil && txOut != nil {
 			addrs := txOut.ScriptPubKey.Addresses
 			if len(addrs) != 1 {
@@ -1547,7 +1547,7 @@ func (dcr *ExchangeWallet) AuditContract(coinID, contract dex.Bytes) (*asset.Aud
 		return nil, fmt.Errorf("error extracting swap addresses: %w", err)
 	}
 	// Get the contracts P2SH address from the tx output's pubkey script.
-	txOut, err := dcr.node.GetTxOut(dcr.ctx, txHash, vout, true)
+	txOut, err := dcr.getTxOut(txHash, vout, true)
 	if err != nil {
 		return nil, fmt.Errorf("error finding unspent contract: %w", translateRPCCancelErr(err))
 	}
@@ -1957,7 +1957,7 @@ func (dcr *ExchangeWallet) Refund(coinID, contract dex.Bytes) (dex.Bytes, error)
 		return nil, err
 	}
 	// Grab the unspent output to make sure it's good and to get the value.
-	utxo, err := dcr.node.GetTxOut(dcr.ctx, txHash, vout, true)
+	utxo, err := dcr.getTxOut(txHash, vout, true)
 	if err != nil {
 		return nil, fmt.Errorf("error finding unspent contract: %w", translateRPCCancelErr(err))
 	}
@@ -2112,7 +2112,7 @@ func (dcr *ExchangeWallet) Confirmations(ctx context.Context, id dex.Bytes) (con
 		return 0, false, err
 	}
 	// Check for an unspent output.
-	txOut, err := dcr.node.GetTxOut(ctx, txHash, vout, true)
+	txOut, err := dcr.getTxOut(txHash, vout, true)
 	if err == nil && txOut != nil {
 		return uint32(txOut.Confirmations), false, nil
 	}
@@ -2245,6 +2245,16 @@ func (dcr *ExchangeWallet) lockedAtoms() (uint64, error) {
 	return sum, nil
 }
 
+// getTxOut attempts to find the specified txout from the regular tree and if
+// not found in the regular tree, checks the stake tree.
+func (dcr *ExchangeWallet) getTxOut(txHash *chainhash.Hash, index uint32, mempool bool) (*chainjson.GetTxOutResult, error) {
+	txout, err := dcr.node.GetTxOut(dcr.ctx, txHash, index, wire.TxTreeRegular, mempool) // check regular tree first
+	if err == nil && txout == nil {
+		txout, err = dcr.node.GetTxOut(dcr.ctx, txHash, index, wire.TxTreeStake, mempool) // check stake tree
+	}
+	return txout, err
+}
+
 // convertCoin converts the asset.Coin to an unspent output.
 func (dcr *ExchangeWallet) convertCoin(coin asset.Coin) (*output, error) {
 	op, _ := coin.(*output)
@@ -2255,7 +2265,7 @@ func (dcr *ExchangeWallet) convertCoin(coin asset.Coin) (*output, error) {
 	if err != nil {
 		return nil, err
 	}
-	txOut, err := dcr.node.GetTxOut(dcr.ctx, txHash, vout, true)
+	txOut, err := dcr.getTxOut(txHash, vout, true)
 	if err != nil {
 		return nil, fmt.Errorf("error finding unspent output %s:%d: %w", txHash, vout, translateRPCCancelErr(err))
 	}
diff --git a/client/asset/dcr/dcr_test.go b/client/asset/dcr/dcr_test.go
index 97f049d628..4a93affb5e 100644
--- a/client/asset/dcr/dcr_test.go
+++ b/client/asset/dcr/dcr_test.go
@@ -19,16 +19,16 @@ import (
 	"decred.org/dcrdex/dex"
 	"decred.org/dcrdex/dex/calc"
 	dexdcr "decred.org/dcrdex/dex/networks/dcr"
-	"decred.org/dcrwallet/rpc/client/dcrwallet"
-	walletjson "decred.org/dcrwallet/rpc/jsonrpc/types"
+	"decred.org/dcrwallet/v2/rpc/client/dcrwallet"
+	walletjson "decred.org/dcrwallet/v2/rpc/jsonrpc/types"
 	"github.com/decred/dcrd/chaincfg/chainhash"
 	"github.com/decred/dcrd/chaincfg/v3"
 	"github.com/decred/dcrd/dcrec"
 	"github.com/decred/dcrd/dcrec/secp256k1/v3"
 	"github.com/decred/dcrd/dcrec/secp256k1/v3/ecdsa"
-	"github.com/decred/dcrd/dcrutil/v3"
-	chainjson "github.com/decred/dcrd/rpc/jsonrpc/types/v2"
-	"github.com/decred/dcrd/txscript/v3"
+	"github.com/decred/dcrd/dcrutil/v4"
+	chainjson "github.com/decred/dcrd/rpc/jsonrpc/types/v3"
+	"github.com/decred/dcrd/txscript/v4"
 	"github.com/decred/dcrd/wire"
 )
 
@@ -237,13 +237,13 @@ func newTRPCClient() *tRPCClient {
 	}
 }
 
-func (c *tRPCClient) EstimateSmartFee(_ context.Context, confirmations int64, mode chainjson.EstimateSmartFeeMode) (float64, error) {
+func (c *tRPCClient) EstimateSmartFee(_ context.Context, confirmations int64, mode chainjson.EstimateSmartFeeMode) (*chainjson.EstimateSmartFeeResult, error) {
 	if c.estFeeErr != nil {
-		return 0, c.estFeeErr
+		return nil, c.estFeeErr
 	}
-	optimalRate := float64(optimalFeeRate) * 1e-5
+	optimalRate := float64(optimalFeeRate) * 1e-5 // optimalFeeRate: 22 atoms/byte = 0.00022 DCR/KB * 1e8 atoms/DCR * 1e-3 KB/Byte
 	// fmt.Println((float64(optimalFeeRate)*1e-5)-0.00022)
-	return optimalRate, nil // optimalFeeRate: 22 atoms/byte = 0.00022 DCR/KB * 1e8 atoms/DCR * 1e-3 KB/Byte
+	return &chainjson.EstimateSmartFeeResult{FeeRate: optimalRate}, nil
 }
 
 func (c *tRPCClient) GetBlockChainInfo(_ context.Context) (*chainjson.GetBlockChainInfoResult, error) {
@@ -259,7 +259,7 @@ func (c *tRPCClient) SendRawTransaction(_ context.Context, tx *wire.MsgTx, allow
 	return c.sendRawHash, c.sendRawErr
 }
 
-func (c *tRPCClient) GetTxOut(_ context.Context, txHash *chainhash.Hash, vout uint32, mempool bool) (*chainjson.GetTxOutResult, error) {
+func (c *tRPCClient) GetTxOut(_ context.Context, txHash *chainhash.Hash, vout uint32, tree int8, mempool bool) (*chainjson.GetTxOutResult, error) {
 	return c.txOutRes[newOutPoint(txHash, vout)], c.txOutErr
 }
 
diff --git a/client/cmd/dexc/config.go b/client/cmd/dexc/config.go
index 46c77b0b36..f25e6ed8ab 100644
--- a/client/cmd/dexc/config.go
+++ b/client/cmd/dexc/config.go
@@ -14,7 +14,7 @@ import (
 
 	"decred.org/dcrdex/client/cmd/dexc/version"
 	"decred.org/dcrdex/dex"
-	"github.com/decred/dcrd/dcrutil/v3"
+	"github.com/decred/dcrd/dcrutil/v4"
 	flags "github.com/jessevdk/go-flags"
 )
 
diff --git a/client/cmd/dexcctl/config.go b/client/cmd/dexcctl/config.go
index d39c6aa2d5..d5c59b7919 100644
--- a/client/cmd/dexcctl/config.go
+++ b/client/cmd/dexcctl/config.go
@@ -15,7 +15,7 @@ import (
 	flags "github.com/jessevdk/go-flags"
 
 	"decred.org/dcrdex/client/rpcserver"
-	"github.com/decred/dcrd/dcrutil/v3"
+	"github.com/decred/dcrd/dcrutil/v4"
 )
 
 const (
diff --git a/dex/networks/dcr/script.go b/dex/networks/dcr/script.go
index afc8c380ab..9a2b5b3069 100644
--- a/dex/networks/dcr/script.go
+++ b/dex/networks/dcr/script.go
@@ -11,11 +11,11 @@ import (
 	"fmt"
 
 	"decred.org/dcrdex/dex"
-	"decred.org/dcrwallet/wallet/txsizes"
+	"decred.org/dcrwallet/v2/wallet/txsizes"
 	"github.com/decred/dcrd/chaincfg/v3"
 	"github.com/decred/dcrd/dcrec"
-	"github.com/decred/dcrd/dcrutil/v3"
-	"github.com/decred/dcrd/txscript/v3"
+	"github.com/decred/dcrd/dcrutil/v4"
+	"github.com/decred/dcrd/txscript/v4"
 	"github.com/decred/dcrd/wire"
 )
 
diff --git a/dex/networks/dcr/script_test.go b/dex/networks/dcr/script_test.go
index 1be482231a..2d4a5e3a23 100644
--- a/dex/networks/dcr/script_test.go
+++ b/dex/networks/dcr/script_test.go
@@ -13,8 +13,8 @@ import (
 	"github.com/decred/dcrd/chaincfg/v3"
 	"github.com/decred/dcrd/dcrec"
 	"github.com/decred/dcrd/dcrec/secp256k1/v3"
-	"github.com/decred/dcrd/dcrutil/v3"
-	"github.com/decred/dcrd/txscript/v3"
+	"github.com/decred/dcrd/dcrutil/v4"
+	"github.com/decred/dcrd/txscript/v4"
 	"github.com/decred/dcrd/wire"
 )
 
diff --git a/docs/examples/rpcclient/main.go b/docs/examples/rpcclient/main.go
index 19ddfdeaf0..123fef28d7 100644
--- a/docs/examples/rpcclient/main.go
+++ b/docs/examples/rpcclient/main.go
@@ -18,7 +18,7 @@ import (
 
 	"decred.org/dcrdex/client/rpcserver"
 	"decred.org/dcrdex/dex/msgjson"
-	"github.com/decred/dcrd/dcrutil/v3"
+	"github.com/decred/dcrd/dcrutil/v4"
 	"github.com/gorilla/websocket"
 )
 
diff --git a/go.mod b/go.mod
index b4e4eb7a15..73b8d1d6d4 100644
--- a/go.mod
+++ b/go.mod
@@ -3,11 +3,11 @@ module decred.org/dcrdex
 go 1.14
 
 require (
-	decred.org/dcrwallet v1.6.0-rc4
+	decred.org/dcrwallet/v2 v2.0.0-20210129212301-69cae76621d1
 	github.com/btcsuite/btcd v0.20.1-beta.0.20200615134404-e4f59022a387
 	github.com/btcsuite/btcutil v1.0.2
 	github.com/davecgh/go-spew v1.1.1
-	github.com/decred/dcrd/blockchain/stake/v3 v3.0.0
+	github.com/decred/dcrd/blockchain/stake/v4 v4.0.0-20210129220646-5834ce08e290
 	github.com/decred/dcrd/certgen v1.1.1
 	github.com/decred/dcrd/chaincfg/chainhash v1.0.2
 	github.com/decred/dcrd/chaincfg/v3 v3.0.0
@@ -16,11 +16,11 @@ require (
 	github.com/decred/dcrd/dcrec/edwards/v2 v2.0.1
 	github.com/decred/dcrd/dcrec/secp256k1/v3 v3.0.0
 	github.com/decred/dcrd/dcrjson/v3 v3.1.0
-	github.com/decred/dcrd/dcrutil/v3 v3.0.0
+	github.com/decred/dcrd/dcrutil/v4 v4.0.0-20210129220646-5834ce08e290
 	github.com/decred/dcrd/hdkeychain/v3 v3.0.0
-	github.com/decred/dcrd/rpc/jsonrpc/types/v2 v2.3.0
-	github.com/decred/dcrd/rpcclient/v6 v6.0.2
-	github.com/decred/dcrd/txscript/v3 v3.0.0
+	github.com/decred/dcrd/rpc/jsonrpc/types/v3 v3.0.0-20210129220646-5834ce08e290
+	github.com/decred/dcrd/rpcclient/v7 v7.0.0-20210129220646-5834ce08e290
+	github.com/decred/dcrd/txscript/v4 v4.0.0-20210129220646-5834ce08e290
 	github.com/decred/dcrd/wire v1.4.0
 	github.com/decred/go-socks v1.1.0
 	github.com/decred/slog v1.1.0
diff --git a/go.sum b/go.sum
index 0b3c5b8138..d967a3905e 100644
--- a/go.sum
+++ b/go.sum
@@ -1,7 +1,7 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 decred.org/cspp v0.3.0/go.mod h1:UygjYilC94dER3BEU65Zzyoqy9ngJfWCD2rdJqvUs2A=
-decred.org/dcrwallet v1.6.0-rc4 h1:5IT6mFa+2YMqenu6aE2LetD0N8QSUVFyAFl205PvIIE=
-decred.org/dcrwallet v1.6.0-rc4/go.mod h1:lsrNbuKxkPGeHXPufxNTckwQopCEDz0r3t0a8JCKAmU=
+decred.org/dcrwallet/v2 v2.0.0-20210129212301-69cae76621d1 h1:UTev1ywAZaCqiqIX/knNDw0sev34YzU34E0pnFrSisE=
+decred.org/dcrwallet/v2 v2.0.0-20210129212301-69cae76621d1/go.mod h1:a/gCARd0EX8yS4iML21MQME75+bxtaGqVKjgCPAXeno=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/OpenBazaar/jsonpb v0.0.0-20171123000858-37d32ddf4eef/go.mod h1:55mCznBcN9WQgrtgaAkv+p2LxeW/tQRdidyyE9D0I5k=
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
@@ -39,10 +39,12 @@ github.com/dchest/siphash v1.2.2/go.mod h1:q+IRvb2gOSrUnYoPqHiyHXS0FOBBOdl6tONBl
 github.com/decred/base58 v1.0.3 h1:KGZuh8d1WEMIrK0leQRM47W85KqCAdl2N+uagbctdDI=
 github.com/decred/base58 v1.0.3/go.mod h1:pXP9cXCfM2sFLb2viz2FNIdeMWmZDBKG3ZBYbiSM78E=
 github.com/decred/dcrd/addrmgr v1.2.0/go.mod h1:QlZF9vkzwYh0qs25C76SAFZBRscjETga/K28GEE6qIc=
-github.com/decred/dcrd/blockchain/stake/v3 v3.0.0 h1:vr0o0ICjuEzg1End6YtBfwgDuPkg+FYIwGVEz18kFg0=
 github.com/decred/dcrd/blockchain/stake/v3 v3.0.0/go.mod h1:5GIUwsrHQCJauacgCegIR6t92SaeVi28Qls/BLN9vOw=
+github.com/decred/dcrd/blockchain/stake/v4 v4.0.0-20210129192908-660d0518b4cf/go.mod h1:zALtZt59lCrhoj6dVMptHHAMw1hq0Zz9s2ZULWjhtZs=
+github.com/decred/dcrd/blockchain/stake/v4 v4.0.0-20210129220646-5834ce08e290 h1:IsABUVl6wuwUSOHiYKXodMht04wyRV0US/6HTXsXKyM=
+github.com/decred/dcrd/blockchain/stake/v4 v4.0.0-20210129220646-5834ce08e290/go.mod h1:zALtZt59lCrhoj6dVMptHHAMw1hq0Zz9s2ZULWjhtZs=
 github.com/decred/dcrd/blockchain/standalone/v2 v2.0.0/go.mod h1:t2qaZ3hNnxHZ5kzVJDgW5sp47/8T5hYJt7SR+/JtRhI=
-github.com/decred/dcrd/blockchain/v3 v3.0.2/go.mod h1:LD5VA95qdb+DlRiPI8VLBimDqvlDCAJsidZ5oD6nc/U=
+github.com/decred/dcrd/blockchain/v4 v4.0.0-20210129200153-14fd1a785bf2/go.mod h1:AwWyfS769nQVXTbfwrSVsAMAwkpoU1N//6XYkYwXJUU=
 github.com/decred/dcrd/certgen v1.1.1 h1:MYPG5jCysnbF4OiJ1++YumFEu2p/MsM/zxmmqC9mVFg=
 github.com/decred/dcrd/certgen v1.1.1/go.mod h1:ivkPLChfjdAgFh7ZQOtl6kJRqVkfrCq67dlq3AbZBQE=
 github.com/decred/dcrd/chaincfg/chainhash v1.0.2 h1:rt5Vlq/jM3ZawwiacWjPa+smINyLRN07EO0cNBV6DGU=
@@ -54,28 +56,39 @@ github.com/decred/dcrd/crypto/blake256 v1.0.0 h1:/8DMNYp9SGi5f0w7uCm6d6M4OU2rGFK
 github.com/decred/dcrd/crypto/blake256 v1.0.0/go.mod h1:sQl2p6Y26YV+ZOcSTP6thNdn47hh8kt6rqSlvmrXFAc=
 github.com/decred/dcrd/crypto/ripemd160 v1.0.1 h1:TjRL4LfftzTjXzaufov96iDAkbY2R3aTvH2YMYa1IOc=
 github.com/decred/dcrd/crypto/ripemd160 v1.0.1/go.mod h1:F0H8cjIuWTRoixr/LM3REB8obcWkmYx0gbxpQWR8RPg=
-github.com/decred/dcrd/database/v2 v2.0.2 h1:t1ch4sk2qIhxGcAmWQJkFwsbqKITEcVa8E+BFpxOf7s=
 github.com/decred/dcrd/database/v2 v2.0.2/go.mod h1:S78KbTCCJWUTJDVTByiQuB+HmL0DM2vIMsa2WsrF9KM=
+github.com/decred/dcrd/database/v2 v2.0.3-0.20210129190127-4ebd135a82f1 h1:+oUVvEK/+TQeJqJs0bbnVcs2IvFkL4Z8nIKupeFDV3A=
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 github.com/decred/dcrd/dcrec v1.0.0 h1:W+z6Es+Rai3MXYVoPAxYr5U1DGis0Co33scJ6uH2J6o=
 github.com/decred/dcrd/dcrec v1.0.0/go.mod h1:HIaqbEJQ+PDzQcORxnqen5/V1FR3B4VpIfmePklt8Q8=
 github.com/decred/dcrd/dcrec/edwards/v2 v2.0.1 h1:V6eqU1crZzuoFT4KG2LhaU5xDSdkHuvLQsj25wd7Wb4=
 github.com/decred/dcrd/dcrec/edwards/v2 v2.0.1/go.mod h1:d0H8xGMWbiIQP7gN3v2rByWUcuZPm9YsgmnfoxgbINc=
 github.com/decred/dcrd/dcrec/secp256k1/v3 v3.0.0 h1:sgNeV1VRMDzs6rzyPpxyM0jp317hnwiq58Filgag2xw=
 github.com/decred/dcrd/dcrec/secp256k1/v3 v3.0.0/go.mod h1:J70FGZSbzsjecRTiTzER+3f1KZLNaXkuv+yeFTKoxM8=
+github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.0-20210127014238-b33b46cf1a24 h1:L718+uXQkWq02GqdBdEAUIbBPh/Il/kudTsOEf0pItQ=
+github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.0-20210127014238-b33b46cf1a24/go.mod h1:UkVqoxmJlLgUvBjJD+GdJz6mgdSdf3UjX83xfwUAYDk=
 github.com/decred/dcrd/dcrjson/v3 v3.1.0 h1:Y2VjCXCNWbNIa52wMKEuNiU+9rUgnjYb5c1JQW6PuzM=
 github.com/decred/dcrd/dcrjson/v3 v3.1.0/go.mod h1:fnTHev/ABGp8IxFudDhjGi9ghLiXRff1qZz/wvq12Mg=
 github.com/decred/dcrd/dcrutil/v3 v3.0.0 h1:n6uQaTQynIhCY89XsoDk2WQqcUcnbD+zUM9rnZcIOZo=
 github.com/decred/dcrd/dcrutil/v3 v3.0.0/go.mod h1:iVsjcqVzLmYFGCZLet2H7Nq+7imV9tYcuY+0lC2mNsY=
-github.com/decred/dcrd/gcs/v2 v2.1.0 h1:foECqwfE3UJztU4CYtqUYqvR254x1Z9clXVfNdOjBQ8=
+github.com/decred/dcrd/dcrutil/v4 v4.0.0-20210129181600-6ae0142d3b28/go.mod h1:xe59jKcMx5G/dbRmsZ8+FzY+WQDE/7YBP3k3uzJTtmI=
+github.com/decred/dcrd/dcrutil/v4 v4.0.0-20210129220646-5834ce08e290 h1:7RQ9u2ckoolEM+lWgdMCSDhV8dzAO2UusW+VMklAavs=
+github.com/decred/dcrd/dcrutil/v4 v4.0.0-20210129220646-5834ce08e290/go.mod h1:xe59jKcMx5G/dbRmsZ8+FzY+WQDE/7YBP3k3uzJTtmI=
 github.com/decred/dcrd/gcs/v2 v2.1.0/go.mod h1:MbnJOINFcp42NMRAQ+CjX/xGz+53AwNgMzKZhwBibdM=
+github.com/decred/dcrd/gcs/v3 v3.0.0-20210129195202-a4265d63b619 h1:YEx0oEkwh9uBPVzzZTkemyKieBpQwmHSI+BdW0VHoAA=
+github.com/decred/dcrd/gcs/v3 v3.0.0-20210129195202-a4265d63b619/go.mod h1:aGuAajYbDJB2oal17G371wiosGgVCc5d5FlT2EwZtoE=
 github.com/decred/dcrd/hdkeychain/v3 v3.0.0 h1:hOPb4c8+K6bE3a/qFtzt2Z2yzK4SpmXmxvCTFp8vMxI=
 github.com/decred/dcrd/hdkeychain/v3 v3.0.0/go.mod h1:Vz7PJSlLzhqmOR2lmjGD9JqAZgmUnM8P6r8hg7U4Zho=
-github.com/decred/dcrd/rpc/jsonrpc/types/v2 v2.3.0 h1:KZ2zihwY5Mx6EeYwEA3bL3k+qDXdCraQL+iDIG1BP5k=
-github.com/decred/dcrd/rpc/jsonrpc/types/v2 v2.3.0/go.mod h1:krn89ZOgSa8yc7sA4WpDK95p61NnjNWFkNlMnGrKbMc=
-github.com/decred/dcrd/rpcclient/v6 v6.0.2 h1:bPHPeKGrPZPsHDSRIJxj5xhqoxwM5R7+OsEZXFpDxPk=
-github.com/decred/dcrd/rpcclient/v6 v6.0.2/go.mod h1:t6ECC72j2xWQ323poL85IFNq0EUfcSTfwL8j7jDJ6mw=
-github.com/decred/dcrd/txscript/v3 v3.0.0 h1:74NmirXAIskbGP0g9OWtrmN7OxDbWJ9G73a5uoxTkcM=
+github.com/decred/dcrd/lru v1.1.0/go.mod h1:mxKOwFd7lFjN2GZYsiz/ecgqR6kkYAl+0pz0tEMk218=
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 github.com/decred/dcrd/txscript/v3 v3.0.0/go.mod h1:pdvnlD4KGdDoc09cvWRJ8EoRQUaiUz41uDevOWuEfII=
+github.com/decred/dcrd/txscript/v4 v4.0.0-20210129190127-4ebd135a82f1/go.mod h1:EnS4vtxTESoI59geLo9M8AUOvIprJy+O4gSVsQp6/h4=
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 github.com/decred/dcrd/wire v1.3.0/go.mod h1:fnKGlUY2IBuqnpxx5dYRU5Oiq392OBqAuVjRVSkIoXM=
 github.com/decred/dcrd/wire v1.4.0 h1:KmSo6eTQIvhXS0fLBQ/l7hG7QLcSJQKSwSyzSqJYDk0=
 github.com/decred/dcrd/wire v1.4.0/go.mod h1:WxC/0K+cCAnBh+SKsRjIX9YPgvrjhmE+6pZlel1G7Ro=
diff --git a/server/asset/dcr/cache.go b/server/asset/dcr/cache.go
index f558d2065c..06249a599d 100644
--- a/server/asset/dcr/cache.go
+++ b/server/asset/dcr/cache.go
@@ -9,7 +9,7 @@ import (
 
 	"decred.org/dcrdex/dex"
 	"github.com/decred/dcrd/chaincfg/chainhash"
-	chainjson "github.com/decred/dcrd/rpc/jsonrpc/types/v2"
+	chainjson "github.com/decred/dcrd/rpc/jsonrpc/types/v3"
 )
 
 // The dcrBlock structure should hold a minimal amount of information about a
diff --git a/server/asset/dcr/config.go b/server/asset/dcr/config.go
index db58db1d14..5a81f5334b 100644
--- a/server/asset/dcr/config.go
+++ b/server/asset/dcr/config.go
@@ -10,7 +10,7 @@ import (
 
 	"decred.org/dcrdex/dex"
 	"github.com/decred/dcrd/chaincfg/v3"
-	"github.com/decred/dcrd/dcrutil/v3"
+	"github.com/decred/dcrd/dcrutil/v4"
 	flags "github.com/jessevdk/go-flags"
 )
 
diff --git a/server/asset/dcr/dcr.go b/server/asset/dcr/dcr.go
index 8323e72b86..1f63d2fc72 100644
--- a/server/asset/dcr/dcr.go
+++ b/server/asset/dcr/dcr.go
@@ -20,13 +20,13 @@ import (
 	"decred.org/dcrdex/dex"
 	dexdcr "decred.org/dcrdex/dex/networks/dcr"
 	"decred.org/dcrdex/server/asset"
-	"github.com/decred/dcrd/blockchain/stake/v3"
+	"github.com/decred/dcrd/blockchain/stake/v4"
 	"github.com/decred/dcrd/chaincfg/chainhash"
 	"github.com/decred/dcrd/dcrjson/v3"
-	"github.com/decred/dcrd/dcrutil/v3"
+	"github.com/decred/dcrd/dcrutil/v4"
 	"github.com/decred/dcrd/hdkeychain/v3"
-	chainjson "github.com/decred/dcrd/rpc/jsonrpc/types/v2"
-	"github.com/decred/dcrd/rpcclient/v6"
+	chainjson "github.com/decred/dcrd/rpc/jsonrpc/types/v3"
+	"github.com/decred/dcrd/rpcclient/v7"
 	"github.com/decred/dcrd/wire"
 )
 
@@ -57,7 +57,7 @@ var (
 	// check for new blocks.
 	blockPollInterval = time.Second
 
-	requiredNodeVersion = dex.Semver{Major: 6, Minor: 1, Patch: 2}
+	requiredNodeVersion = dex.Semver{Major: 7, Minor: 0, Patch: 0}
 )
 
 const (
@@ -69,8 +69,8 @@ const (
 // satisfied by rpcclient.Client, and all methods are matches for Client
 // methods. For testing, it can be satisfied by a stub.
 type dcrNode interface {
-	EstimateSmartFee(ctx context.Context, confirmations int64, mode chainjson.EstimateSmartFeeMode) (float64, error)
-	GetTxOut(ctx context.Context, txHash *chainhash.Hash, index uint32, mempool bool) (*chainjson.GetTxOutResult, error)
+	EstimateSmartFee(ctx context.Context, confirmations int64, mode chainjson.EstimateSmartFeeMode) (*chainjson.EstimateSmartFeeResult, error)
+	GetTxOut(ctx context.Context, txHash *chainhash.Hash, index uint32, tree int8, mempool bool) (*chainjson.GetTxOutResult, error)
 	GetRawTransactionVerbose(ctx context.Context, txHash *chainhash.Hash) (*chainjson.TxRawResult, error)
 	GetBlockVerbose(ctx context.Context, blockHash *chainhash.Hash, verboseTx bool) (*chainjson.GetBlockVerboseResult, error)
 	GetBlockHash(ctx context.Context, blockHeight int64) (*chainhash.Hash, error)
@@ -241,11 +241,11 @@ func (dcr *Backend) InitTxSizeBase() uint32 {
 // FeeRate returns the current optimal fee rate in atoms / byte.
 func (dcr *Backend) FeeRate() (uint64, error) {
 	// estimatesmartfee 1 returns extremely high rates on DCR.
-	dcrPerKB, err := dcr.node.EstimateSmartFee(dcr.ctx, 2, chainjson.EstimateSmartFeeConservative)
+	estimateFeeResult, err := dcr.node.EstimateSmartFee(dcr.ctx, 2, chainjson.EstimateSmartFeeConservative)
 	if err != nil {
 		return 0, translateRPCCancelErr(err)
 	}
-	atomsPerKB, err := dcrutil.NewAmount(dcrPerKB)
+	atomsPerKB, err := dcrutil.NewAmount(estimateFeeResult.FeeRate)
 	if err != nil {
 		return 0, err
 	}
@@ -393,7 +393,10 @@ func (dcr *Backend) VerifyUnspentCoin(ctx context.Context, coinID []byte) error
 	if err != nil {
 		return fmt.Errorf("error decoding coin ID %x: %w", coinID, err)
 	}
-	txOut, err := dcr.node.GetTxOut(ctx, txHash, vout, true)
+	txOut, err := dcr.node.GetTxOut(ctx, txHash, vout, wire.TxTreeRegular, true) // check regular tree first
+	if err == nil && txOut == nil {
+		txOut, err = dcr.node.GetTxOut(ctx, txHash, vout, wire.TxTreeStake, true) // check stake tree
+	}
 	if err != nil {
 		return fmt.Errorf("GetTxOut (%s:%d): %w", txHash.String(), vout, translateRPCCancelErr(err))
 	}
@@ -902,8 +905,8 @@ func msgTxFromHex(txhex string) (*wire.MsgTx, error) {
 }
 
 // Get information for an unspent transaction output.
-func (dcr *Backend) getUnspentTxOut(ctx context.Context, txHash *chainhash.Hash, vout uint32) (*chainjson.GetTxOutResult, []byte, error) {
-	txOut, err := dcr.node.GetTxOut(ctx, txHash, vout, true)
+func (dcr *Backend) getUnspentTxOut(ctx context.Context, txHash *chainhash.Hash, vout uint32, tree int8) (*chainjson.GetTxOutResult, []byte, error) {
+	txOut, err := dcr.node.GetTxOut(ctx, txHash, vout, tree, true)
 	if err != nil {
 		return nil, nil, fmt.Errorf("GetTxOut error for output %s:%d: %w",
 			txHash, vout, translateRPCCancelErr(err))
@@ -921,14 +924,19 @@ func (dcr *Backend) getUnspentTxOut(ctx context.Context, txHash *chainhash.Hash,
 // Get information for an unspent transaction output, plus the verbose
 // transaction.
 func (dcr *Backend) getTxOutInfo(ctx context.Context, txHash *chainhash.Hash, vout uint32) (*chainjson.GetTxOutResult, *chainjson.TxRawResult, []byte, error) {
-	txOut, pkScript, err := dcr.getUnspentTxOut(ctx, txHash, vout)
-	if err != nil {
-		return nil, nil, nil, err
-	}
 	verboseTx, err := dcr.node.GetRawTransactionVerbose(ctx, txHash)
 	if err != nil {
 		return nil, nil, nil, fmt.Errorf("GetRawTransactionVerbose for txid %s: %w", txHash, translateRPCCancelErr(err))
 	}
+	msgTx, err := msgTxFromHex(verboseTx.Hex)
+	if err != nil {
+		return nil, nil, nil, fmt.Errorf("failed to decode MsgTx from hex for transaction %s: %w", txHash, err)
+	}
+	txTree := stake.DetermineTxType(msgTx, msgTx.Version == wire.TxVersionTreasury)
+	txOut, pkScript, err := dcr.getUnspentTxOut(ctx, txHash, vout, int8(txTree))
+	if err != nil {
+		return nil, nil, nil, err
+	}
 	return txOut, verboseTx, pkScript, nil
 }
 
diff --git a/server/asset/dcr/dcr_test.go b/server/asset/dcr/dcr_test.go
index 8f34793232..2ff730264e 100644
--- a/server/asset/dcr/dcr_test.go
+++ b/server/asset/dcr/dcr_test.go
@@ -27,10 +27,10 @@ import (
 	"github.com/decred/dcrd/dcrec/secp256k1/v3"
 	"github.com/decred/dcrd/dcrec/secp256k1/v3/ecdsa"
 	"github.com/decred/dcrd/dcrec/secp256k1/v3/schnorr"
-	"github.com/decred/dcrd/dcrutil/v3"
+	"github.com/decred/dcrd/dcrutil/v4"
 	"github.com/decred/dcrd/hdkeychain/v3"
-	chainjson "github.com/decred/dcrd/rpc/jsonrpc/types/v2"
-	"github.com/decred/dcrd/txscript/v3"
+	chainjson "github.com/decred/dcrd/rpc/jsonrpc/types/v3"
+	"github.com/decred/dcrd/txscript/v4"
 	"github.com/decred/dcrd/wire"
 	flags "github.com/jessevdk/go-flags"
 )
@@ -187,14 +187,14 @@ func txOutID(txHash *chainhash.Hash, index uint32) string {
 
 const optimalFeeRate uint64 = 22
 
-func (*testNode) EstimateSmartFee(_ context.Context, confirmations int64, mode chainjson.EstimateSmartFeeMode) (float64, error) {
-	optimalRate := float64(optimalFeeRate) * 1e-5
+func (*testNode) EstimateSmartFee(_ context.Context, confirmations int64, mode chainjson.EstimateSmartFeeMode) (*chainjson.EstimateSmartFeeResult, error) {
+	optimalRate := float64(optimalFeeRate) * 1e-5 // optimalFeeRate: 22 atoms/byte = 0.00022 DCR/KB * 1e8 atoms/DCR * 1e-3 KB/Byte
 	// fmt.Println((float64(optimalFeeRate)*1e-5)-0.00022)
-	return optimalRate, nil // optimalFeeRate: 22 atoms/byte = 0.00022 DCR/KB * 1e8 atoms/DCR * 1e-3 KB/Byte
+	return &chainjson.EstimateSmartFeeResult{FeeRate: optimalRate}, nil
 }
 
 // Part of the dcrNode interface.
-func (*testNode) GetTxOut(_ context.Context, txHash *chainhash.Hash, index uint32, _ bool) (*chainjson.GetTxOutResult, error) {
+func (*testNode) GetTxOut(_ context.Context, txHash *chainhash.Hash, index uint32, tree int8, _ bool) (*chainjson.GetTxOutResult, error) {
 	outID := txOutID(txHash, index)
 	testChainMtx.RLock()
 	defer testChainMtx.RUnlock()
diff --git a/server/asset/dcr/live_test.go b/server/asset/dcr/live_test.go
index a670a8a062..91fc15ef5a 100644
--- a/server/asset/dcr/live_test.go
+++ b/server/asset/dcr/live_test.go
@@ -34,7 +34,7 @@ import (
 	"decred.org/dcrdex/dex"
 	dexdcr "decred.org/dcrdex/dex/networks/dcr"
 	"github.com/decred/dcrd/chaincfg/chainhash"
-	chainjson "github.com/decred/dcrd/rpc/jsonrpc/types/v2"
+	chainjson "github.com/decred/dcrd/rpc/jsonrpc/types/v3"
 	"github.com/decred/dcrd/wire"
 )
 
diff --git a/server/asset/dcr/utxo.go b/server/asset/dcr/utxo.go
index 3ed892d8ae..21374b2b9e 100644
--- a/server/asset/dcr/utxo.go
+++ b/server/asset/dcr/utxo.go
@@ -15,7 +15,7 @@ import (
 	"decred.org/dcrdex/server/asset"
 	"github.com/decred/dcrd/chaincfg/chainhash"
 	"github.com/decred/dcrd/dcrec"
-	"github.com/decred/dcrd/dcrutil/v3"
+	"github.com/decred/dcrd/dcrutil/v4"
 )
 
 const ErrReorgDetected = dex.ErrorKind("reorg detected")
diff --git a/server/cmd/dcrdex/config.go b/server/cmd/dcrdex/config.go
index ef90d90a7a..e36dd12a54 100644
--- a/server/cmd/dcrdex/config.go
+++ b/server/cmd/dcrdex/config.go
@@ -27,7 +27,7 @@ import (
 	"decred.org/dcrdex/server/market"
 	"decred.org/dcrdex/server/matcher"
 	"decred.org/dcrdex/server/swap"
-	"github.com/decred/dcrd/dcrutil/v3"
+	"github.com/decred/dcrd/dcrutil/v4"
 	flags "github.com/jessevdk/go-flags"
 )
 
diff --git a/server/db/driver/pg/accounts.go b/server/db/driver/pg/accounts.go
index 1cefc7e656..f247ed2337 100644
--- a/server/db/driver/pg/accounts.go
+++ b/server/db/driver/pg/accounts.go
@@ -12,7 +12,7 @@ import (
 	"decred.org/dcrdex/server/db"
 	"decred.org/dcrdex/server/db/driver/pg/internal"
 	"github.com/decred/dcrd/chaincfg/chainhash"
-	"github.com/decred/dcrd/dcrutil/v3"
+	"github.com/decred/dcrd/dcrutil/v4"
 	"github.com/decred/dcrd/hdkeychain/v3"
 )
 
diff --git a/server/db/driver/pg/pg.go b/server/db/driver/pg/pg.go
index 45ae5d5995..8c534e8e22 100644
--- a/server/db/driver/pg/pg.go
+++ b/server/db/driver/pg/pg.go
@@ -13,7 +13,7 @@ import (
 	"decred.org/dcrdex/dex"
 	"decred.org/dcrdex/server/db"
 	"github.com/decred/dcrd/chaincfg/v3"
-	"github.com/decred/dcrd/dcrutil/v3"
+	"github.com/decred/dcrd/dcrutil/v4"
 	"github.com/decred/dcrd/hdkeychain/v3"
 )